The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 2016
Filed:
Apr. 17, 2014
Applicant:
Petrowell Limited, Dyce, Aberdeen, GB;
Inventors:
Colin Smith, Aberdeen, GB;
Daniel George Purkis, Aberdeen, GB;
Assignee:
PETROWELL LIMITED, Aberdeen, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 23/04 (2006.01); E21B 23/00 (2006.01); E21B 21/10 (2006.01); E21B 34/14 (2006.01);
U.S. Cl.
CPC ...
E21B 23/004 (2013.01); E21B 21/103 (2013.01); E21B 23/006 (2013.01); E21B 23/04 (2013.01); E21B 34/14 (2013.01);
Abstract
A downhole tool comprises a housing defining a main bore and an actuatable member moveable from a first configuration to a second configuration to permit actuation of the tool. The tool includes an indexer mounted within the housing and arranged to progress linearly in a first direction along the main bore of the housing in a predetermined number of discrete sequential and progressive steps of linear movement in said first direction by passage of a corresponding number of objects through the indexer to cause said actuatable member to move towards its second configuration.